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Finding the Fourth Proportional to 675,145.73, 931,663.42 and 369,161.35

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Solution

The fourth proportional to 675,145.73, 931,663.42 and 369,161.35 is: 509,422.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,145.73 : 931,663.42 = 369,161.35 : x
  2. Step 2: Convert to fraction form
    675,145.73/931,663.42 = 369,161.35/x
  3. Step 3: Cross multiply
    675,145.73x = 931,663.42 × 369,161.35
  4. Step 4: Simplify right side
    675,145.73x = 343,934,122,620.76
  5. Step 5: Solve for x
    x = 343,934,122,620.76/675,145.73
  6. Step 6: Final answer
    x = 509,422.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.